id:A081711 - OEIS Search Results

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n! + n# - 1 is prime, where n# is the primorial function.

+0
2

2, 3, 4, 5, 8, 17, 23, 26, 35, 82, 47, 100, 147, 183, 271, 492, 708, 1116, 1538, 2491, 4207, 4468 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`Some of the larger entries may only correspond to probable primes.`
	LINKS	`Mike Oakes, Primo-factorials`
	EXAMPLE	`a(1)=2 because 2!+2#-1=3 is prime`
	CROSSREFS	`Sequence in context: A108014 A075721 A112479 this_sequence A055638 A057657 A079383` `Adjacent sequences: A081708 A081709 A081710 this_sequence A081712 A081713 A081714`
	KEYWORD	`nonn`
	AUTHOR	`Mike Oakes (mikeoakes2(AT)aol.com), Apr 04 2003`

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.